Improvement in machines for making cores



W. I. REAGAN.

MACHINE FOR MAKING CORES.

Patented April 11, 1876.

TTGBNEYS.

TO-LITMOGRAFHER, WASHINGTON, D C.

UNITED STATES PATENT OFFICE.

WILLIAM J. REAGAN, OF POTTSTOWN, PENNSYLVANIA.

IMPROVEMENT IN MACHINES FOR MAKING CORES.

Specification forming part of Letters Patent No. 176,052, dated April11, 1876; application filed January 22, 1876.

To all whom it may concern 4 Be it known that 1, WILLIAM J. REAGAN, ofPottstown, in the county of Montgomery and State of Pennsylvania, haveinvented a new and Improved Machine for Making Dry Sand Cores, of whichthe following is a specification:

In the accompanying drawing, Figure 1 represents a top view and Fig. 2 avertical axial section on the line as at, Fig. 1.

Similar letters of reference indicate corresponding parts. h

My invention relates to an improved machine for making sand cores of anydesired thickness and length, so that the production of the same isgreatly facilitated and expe dited, and the cores transferred to thedryingkiln in quick and convenient manner.

The invention consists of a revolving stand, to which a number ofcoreboxes of different diameters are hinged, the length of the coresbeing determined by adjustable pistons carrying the core-supportingvent-pins.

In the drawing, A represents a vertical standard or post, on which therevolving stand B, with central tubular part and base platform B, issupported. The tubular part of stand B has annular flanges a, to which agreater or less number of coreboxes or flasks, O, of varying diameter,are hinged. The number of core-boxes depends on the different sizes ofcores required, the machine being made larger or smaller to correspondtherewith. Each core-box G is made in two semi-sections, that areseparately hinged, by their top and bottom lugs I), to pivot-rods d ofcenter tube B. The core-boxes have to be arranged at such distance fromeach other that a sutticient space is formed between them to allow theopening of the semi-sections for taking out the molded cores. Thesemi-sections of each core-box O are locked in closed position by hookand pin or other suitable fastening device. A sliding piston, D, isarranged below each core-box, and of the same diameter therewith. Itsstem is adjusted by a set-screw, E, in a guide-sleeve, E,

of the platform B which is perforated, to allow the lowering of thepiston-stem below the same. The piston D may be set to any height in thecore box, according to the length of the core required. The piston-stemis hollow, for carrying the stem of a cast-iron ventpin, F, thathas abase-disk of the same'diameter as the core-box and piston, and ataperingupward-extending center-pin, over which thocore is formed for beingtransferred with the vent-pin into the drying kiln. The ditferent sizesof core-boxes, in connection with the adjustable pistons, allow themolding of a great number of cores of difterent thicknesses and length,while the vent-pins admit the easy taking ofi' and transferring of thecores to the kilns, where they are inserted into suitable stands,without removing the cores from the pins until they are perfectly driedout and ready for use.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. In a machine for making dry sand cores thecombination of a revolving stand, B, a series of sectional hingedcore-boxes, U,ot' various sizes, and a corresponding number ofadjustable pistons, D, substantially as and for the purpose described.

2. The combination, with the hinged corebox, of a sliding piston andvent-pin of equal diameter therewith, being adjustable to diifer entheight by a guide-sleeve and set-screw of the platform, to obtain coresof any required length, substantially as and for the purpose set forth.

3. The combination, with the perforated piston, of a detachable vent-pinof equal diameter therewith, and central tapering pin,

for transferring the molded cores with the vent-pins to the kiln,substantially as specitied.

WM J. REAGAN.

Witnesses:

GEO. W. REAGAN, JAMES THOMSON.

